import java.io.*;
public class E10_2 {
    public static void main(String[] args) {
        File dirFile = new File(".");
        FileAccept fileAccept = new FileAccept();
        fileAccept.setExtendName("java");
        String fileName[] = dirFile.list(fileAccept);
        for (String name:fileName){
            System.out.println(name);
        }
    }
}
